US5221103A - Quick change slider panel and installation method for flatbed trailer - Google Patents
Quick change slider panel and installation method for flatbed trailer Download PDFInfo
- Publication number
- US5221103A US5221103A US07/790,231 US79023191A US5221103A US 5221103 A US5221103 A US 5221103A US 79023191 A US79023191 A US 79023191A US 5221103 A US5221103 A US 5221103A
- Authority
- US
- United States
- Prior art keywords
- pad
- seat
- assembly according
- frame structure
- seat means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/06—Semi-trailers
- B62D53/068—Semi-trailers having devices to equalise or modify the load between the fifth wheel and the rear wheels
Definitions
- This invention relates to truck trailers for freight load transport, and more particularly relates to slider panels for flatbed, semi-trailer structures.
- the subframe structure and coupled wheel trucks are longitudinally adjustable along the load support bed which is carried on the subframe.
- the longitudinal adjustment is accomplished by pulling the load support bed with the coupled tractor while holding the truck wheels and coupled trailer subframe stationary to achieve sliding displacement of the bed relative to the subframe, and relocking the bed to the subframe after the relative displacement has been achieved for the appropriate longitudinal load weight distribution of the intended freight arrangement.
- the sliding displacement is facilitated by providing friction reducing slider pads which are mounted on the subframe for the direct engagement of the load bed thereon. The slider pads are periodically replaced after their useful life of progressive frictional wear.
- an anti-friction slider pad assembly for reducing the frictional resistance during sliding, longitudinal adjustment of a load support bed relative to an underlying frame structure in order to provide for adjustment of a longitudinal load distribution of the loaded bed on the frame structure, includes a seating or shoe structure for removably supporting the slider pad on the underlying frame structure in order to enable removal of the seat structure and pad therefrom as a unit for convenient replacement of the worn pad.
- the seat and pad preferably include respective coupling elements for securing the pad on the seat without separate fasteners.
- the coupling elements can include a plurality of integrally molded studs projecting from the underside of the pad which are frictionally retained within respective receiving mortises formed in the seat structure to secure the assembly as a unit.
- the pad and seat can be mounted on a hanger structure for suspending the shock absorbing suspension assembly carried by the subframe structure of a flatbed trailer.
- the seat structure can include downwardly extending flanges which straddle the hanger structure.
- the pad is secured to the seat structure and thereafter the flanges of the seat structure guide a sidewise, lateral displacement of the pad and seat between the load bed and the hanger on the underlying frame structure.
- Such installation and seating for the anti-frictional pad eliminate the need for vertical tool clearance to secure the pad to the underlying frame, while achieving the pad engagement with the overlying load bed.
- the preferred side flanges of the seat structure which also preferably straddle the hanger, additionally enable convenient horizontal installation of fasteners to secure the seat and pad to the underlying frame structure.
- FIG. 1 is a partially fragmentary, side view of a flatbed trailer which employs slider pads in accordance with the present invention
- FIG. 2 is a side view similar to FIG. 1 illustrating longitudinal displacement of the subframe and wheel trucks relative to the load bed;
- FIG. 3 is a fragmentary and partially sectional end view illustrating installation of one embodiment of the slider pad between the load bed and subframe of the flatbed trailer of FIGS. 1 and 2;
- FIG. 4 is a transverse view of the coupling assembly which enables the longitudinal adjustment and relative displacement shown in FIGS. 1 and 2;
- FIG. 5 is a fragmentary, sectional view of the installed slider pad viewed substantially along a plane indicated by line 5--5 in FIG. 4;
- FIG. 6 is a fragmentary and partially sectional, exploded view illustrating the slider pad assembly between the I-beams of the load bed and the subframe particularly shown in FIGS. 4 and 5.
- a flatbed trailer assembly 10 includes a coupled subframe, truck unit 12 on which a load bed generally designated by reference character 14 is adjustably supported.
- the load bed 14 includes a conventional pair of spaced I-beams 16 (only one of which is shown in FIGS. 1-3).
- Each I-beam 16 is conventionally provided with a longitudinally arranged sequence of spaced adjustment holes 18 which receive removable coupling pins 20 of a conventional spring-operated coupling assembly generally designated by reference character 22 shown in FIG. 4.
- the subframe 12 includes a conventional suspension assembly generally designated by reference character 24 comprising leaf springs 26 which cushion road shocks to the wheels 28 and axles 30.
- the springs 26 are suspended from conventional hangers 32, 33.
- the aforementioned coupling units 22 transversely bridge the oppositely aligned hangers 32 arranged on the opposing lateral sides of the subframe 12 underlying the respective I-beams 16.
- the coupling units 22 are conventionally operated by a manipulated lever system 34 which simultaneously retracts the ends of the two oppositely displaceable, spring-biased coupling pins 20 to withdraw them from the adjustment holes 18.
- the coupling pins 20 are held in the retracted position during the sliding relative displacement of the load bed 14 relative to the sub frame 12, after which the coupling pins 20 are released to extend through the appropriately spaced adjustment holes 18' corresponding to the suitable relative displacement of the load bed, as reflected in FIGS. 1 and 2, to accommodate the intended longitudinal load arrangement A'.
- the described longitudinal sliding displacement (arrows B) is facilitated by providing friction-reducing slider pads 36 mounted on each of the hangers 32, 33 for the direct frictional engagement of the respective bottom webs 17 of the load bed I-beams 16.
- the composition of the slider pads can be, for example, high density polyethylene or similarly suitable compositions of low frictional resistance.
- Each slider pad 36 is secured to a carrying shoe 38 which has a pair of spaced, downwardly extending mounting flanges 40 which straddle the hanger 32, 33 on which the shoe is mounted as best shown in FIG. 5.
- the shoe 38 is removably secured to the hanger 32 by horizontally aligned, a self-tapping screw or bolt 42 joining a flange 40 to the hanger 32 so that the bolt 42 is readily accessible to horizontally applied drive tooling (not shown).
- the bolt 42 is a shoulder bolt and is constructed so there is a substantial clearance between the bolt head and shoulder and the flange 40 so that no load is transferred from the flange to the bolt.
- Each slider pad 36 can be joined to the respective shoe 38 prior to installation or replacement.
- pad 36 has a plurality of coupling studs 37 integrally molded with and projecting from the underside of pad; the studs 37 are frictionally received and retained within corresponding coupling mortises 44 formed in the upper surface of the shoe 38 as shown in FIGS. 5 and 6.
- the integral pad studs 37 and shoe mortises 44 enable securement of the pad to the shoe without separate fasteners and also eliminates the need for vertical tool access previously required to drive fasteners through a slider pad into a hanger in the prior art structures.
- An additional benefit in preassembling the pad 36 on the shoe 38 is the resulting convenience in mounting the shoe and pad unit in a sidewise or lateral motion onto the seating hanger 32 (or 33) as indicated by arrow C in FIG. 3.
- the sidewise installation of the pad 36 and shoe 38 as a preassembled unit requires at most a very small elevation of the I-beam 16 and load bed 14, but in addition, the straddling of the shoe flanges 40 on the hanger 32 provides self-alignment and guidance of the lateral mounting motion C.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/790,231 US5221103A (en) | 1991-11-08 | 1991-11-08 | Quick change slider panel and installation method for flatbed trailer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/790,231 US5221103A (en) | 1991-11-08 | 1991-11-08 | Quick change slider panel and installation method for flatbed trailer |
Publications (1)
Publication Number | Publication Date |
---|---|
US5221103A true US5221103A (en) | 1993-06-22 |
Family
ID=25150039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/790,231 Expired - Fee Related US5221103A (en) | 1991-11-08 | 1991-11-08 | Quick change slider panel and installation method for flatbed trailer |
Country Status (1)
Country | Link |
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US (1) | US5221103A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5480098A (en) * | 1993-04-10 | 1996-01-02 | Doppstadt; Werner | Mobile material processing machine with tandem axle |
US6968612B2 (en) * | 2002-01-15 | 2005-11-29 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Line facility for producing structure |
US20080034722A1 (en) * | 2006-08-14 | 2008-02-14 | Wright Manufacturing, Inc. | Lawn mower with adjustable rear drive wheels |
US20090033127A1 (en) * | 2004-12-06 | 2009-02-05 | Daimlerchrysler Ag | Subframe for a Chassis Frame of a Utility Vehicle |
US20120043710A1 (en) * | 2008-05-30 | 2012-02-23 | Allen Ip, Incorporated | Adjustable track clamp |
US8857125B2 (en) | 2012-06-27 | 2014-10-14 | Industrial Hardwood Products, Inc. | Wood flooring with sealed joints for truck trailers and containers |
US9434421B1 (en) | 2015-06-02 | 2016-09-06 | Rockland Flooring Llc | Wood flooring with reinforced thermoplastic underlayer |
US20180237087A1 (en) * | 2017-02-17 | 2018-08-23 | Reyco Granning, Llc | Wear pads for slider suspension |
US10449817B2 (en) | 2017-05-18 | 2019-10-22 | Hendrickson Usa, L.L.C. | Slider wear pad |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2962295A (en) * | 1958-06-18 | 1960-11-29 | Copco Trailer Division | Variable position running gear for tractor hauled trailers |
US4526395A (en) * | 1981-08-20 | 1985-07-02 | Gerard Arguin | Tandem trailer system |
US4531753A (en) * | 1983-11-04 | 1985-07-30 | Hicks W Glen | Method and apparatus for varying a vehicle wheelbase |
US4865341A (en) * | 1983-11-04 | 1989-09-12 | Hicks W Glen | Apparatus for varying a vehicle wheelbase |
US5040826A (en) * | 1990-04-16 | 1991-08-20 | Lovell Patrick A | Sliding suspension with lift jack |
-
1991
- 1991-11-08 US US07/790,231 patent/US5221103A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2962295A (en) * | 1958-06-18 | 1960-11-29 | Copco Trailer Division | Variable position running gear for tractor hauled trailers |
US4526395A (en) * | 1981-08-20 | 1985-07-02 | Gerard Arguin | Tandem trailer system |
US4531753A (en) * | 1983-11-04 | 1985-07-30 | Hicks W Glen | Method and apparatus for varying a vehicle wheelbase |
US4865341A (en) * | 1983-11-04 | 1989-09-12 | Hicks W Glen | Apparatus for varying a vehicle wheelbase |
US5040826A (en) * | 1990-04-16 | 1991-08-20 | Lovell Patrick A | Sliding suspension with lift jack |
Non-Patent Citations (2)
Title |
---|
Hutchens Industries, H 8500 Slider Series. * |
Hutchens Industries, H-8500 Slider Series. |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5480098A (en) * | 1993-04-10 | 1996-01-02 | Doppstadt; Werner | Mobile material processing machine with tandem axle |
US6968612B2 (en) * | 2002-01-15 | 2005-11-29 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Line facility for producing structure |
US20090033127A1 (en) * | 2004-12-06 | 2009-02-05 | Daimlerchrysler Ag | Subframe for a Chassis Frame of a Utility Vehicle |
US7699384B2 (en) * | 2004-12-06 | 2010-04-20 | Daimler Ag | Subframe for a chassis frame of a utility vehicle |
US20080034722A1 (en) * | 2006-08-14 | 2008-02-14 | Wright Manufacturing, Inc. | Lawn mower with adjustable rear drive wheels |
US9226448B2 (en) * | 2006-08-14 | 2016-01-05 | Wright Manufacturing, Inc. | Lawn mower with adjustable rear drive wheels |
US9120205B2 (en) | 2008-05-30 | 2015-09-01 | Kreg Enterprises, Inc. | Adjustable track clamp |
US8469343B2 (en) * | 2008-05-30 | 2013-06-25 | Allen Ip, Incorporated | Adjustable track clamp |
US20120043710A1 (en) * | 2008-05-30 | 2012-02-23 | Allen Ip, Incorporated | Adjustable track clamp |
US8857125B2 (en) | 2012-06-27 | 2014-10-14 | Industrial Hardwood Products, Inc. | Wood flooring with sealed joints for truck trailers and containers |
US9434421B1 (en) | 2015-06-02 | 2016-09-06 | Rockland Flooring Llc | Wood flooring with reinforced thermoplastic underlayer |
US9878744B2 (en) | 2015-06-02 | 2018-01-30 | Rockland Flooring Llc | Wood flooring with reinforced thermoplastic underlayer |
US10464616B2 (en) | 2015-06-02 | 2019-11-05 | Rockland Flooring Llc | Wood flooring with reinforced thermoplastic underlayer |
US11046370B2 (en) | 2015-06-02 | 2021-06-29 | Rockland Flooring Llc | Wood flooring with reinforced thermoplastic underlayer |
US20180237087A1 (en) * | 2017-02-17 | 2018-08-23 | Reyco Granning, Llc | Wear pads for slider suspension |
US10618581B2 (en) * | 2017-02-17 | 2020-04-14 | Reyco Granning, Llc | Wear pads for slider suspension |
US10449817B2 (en) | 2017-05-18 | 2019-10-22 | Hendrickson Usa, L.L.C. | Slider wear pad |
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AS | Assignment |
Owner name: WABASH NATIONAL CORPORATION, INDIANA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EHRLICH, RODNEY P.;REEL/FRAME:006005/0849 Effective date: 19911107 |
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Owner name: WABASH NATIONAL, L.P., INDIANA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:054203/0535 Effective date: 20200928 Owner name: BRENNER TANK LLC, WISCONSIN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:054203/0535 Effective date: 20200928 Owner name: BRENNER TANK SERVICES LLC, WISCONSIN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:054203/0535 Effective date: 20200928 Owner name: WALKER GROUP HOLDINGS LLC, WISCONSIN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:054203/0535 Effective date: 20200928 Owner name: WALKER STAINLESS EQUIPMENT COMPANY LLC, WISCONSIN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:MORGAN STANLEY SENIOR FUNDING, INC.;REEL/FRAME:054203/0535 Effective date: 20200928 |